Steel truck for railway-cars.



n n E. I'. DODDS. STEELTRUGK POR RAILWAY. GARS;

APPLICATION FILED MAR-.25, 190e.

Ifatemi Dee. 15, 1914.

* .WITNESSE INVENTQR '.El'lllArll' I; DODDS, 0E CENTRAL VALLEY, NEWYORK.-

s'rEEL TRUCK ron RAILWAY-cans.-

Specication of Letters Patent. Patented Dec', 15, 1914.

Application led March 25; 1908. Serial No. 423,154.

vTo all lwhom it mag/'concern Be it known `that I, ETHAN I. Donnstacitizen of the United States, residing iii Central Valley, in thekcounty of Orange and State of New York, haveinvented a new and usefulAImprovement in Steel Trucks for Railway-Cars, of which the followingisa specification.

My invention relates to improvements in trucks for rail way cars, andmore particularly to improvements in steel trucks of the four wheeledtype.

The object of my invention` is to provide l an all steel yfour wheeled:car truck which webs will have a `certain and proper amount ofelasticity to cause it to operate Withease and eiiiciency, and whichwill at the saine` time have great strength and durability, and inwhichthe center -plate of the truck willbe materially lower vthan in theconstructions heretofore in. use, so that the center sills of the'carbody may be made strong and deep without raising the height of the carbody.y p

' My invention consists in the novel con.

struction of parts and devicesand in the Vn ovel combinations of partsand devicesby which this object or result is practically accomplished,the same lbeing moreparticularly set forthin the claims.

In the accompanying drawing, forming a part ,dthis, specification,Figure l is a plan view, partly in .horizontal section, of a fourwheeled steel can truck'frame embodying my the wheels, car axles andbrake being removed.v Fig. 2 is aside mechanism elevation, partly inlongitudinal section, on

line 2--2 of Fig. 3'; and Fig.

3 vis an end elevation, partly intransverse section, on line 3 3 ofFig.y a

In the drawingl represents the wheels of afour wheeled car truck, 2 theaxles, 3 the.

4 the elliptic springs, 5 thev Ijournal; boxes',v6 the brake shoes, and7 the .coiledspringa brake mechanism, alll these parts being of anyordinary or customary construction;

. yMy improved construction of steel car truck frame, comprises incoperative com- {binatiom side frame upper or compression members 8,-each composed. of a` pair of 'rolled ,f'posed connecting castings 10ofcast steel,

lower orvtension members 11 each composed of a pair ofchannels ..12placed with the webs back tobaclg.andconnectedby said vconnectingcastingslO. The truck frame soms 13.

nected thereto, an integral-bolster hanger lug located inside' steelvchannels 9 placed 'with their., backto backand connected byinterfurther comprises-rolled or pressed steel transoms 13 andconnecting castings 14 by which said transoms 13 are connected rto thetwo side frames,and a depressed cast steel bolster. 15 having a centerplate 1S, and'A extending at its ends 17 over the elliptic` forgedhangers 20. The pedestals 21 ex' tending between the compression members8 and the ,tiemembers 11 of the side frame are of cast steel.

As clearly shown in Fig. 2 of the drawing, the lugs 18 which are formedintegral with the castings 14, are located inside, of the transoms 13.The castings 14, as will be obvious, provide an unusuallyrigidconnection between the side frames rand the tran- By this constrution and-arrangement of arts, the cast steel truck bolster is broughtwell below thecompression members 8 of the trucksideframe, so that thecar body may have strong and deep center 4sills without increasing theheight of the car, and at the same time the frame as a Whole is madesite elasticity to cause it to operate with ease and eiiiciency and to`give it durability.

The truck side frames` are further connected by angle bar transoms 22which are secured at their ends to the forged steel safety guards 23,

'I claim:v

1. A four-wheeled-car truck comprising, y

in combination:'side frameshaiffing upper compression members and vlowertension members; pedestals located at theends of said compression andtens`ion members and extending therebetween A'and connecting the same;transoms tying said sidq frames together connecting castings, one oneach side pression and tension members and coneach of said castingshaving of the transoms; and a truck bolster connected to said lugs andextending fromside 10o l and located midway the lengtliof said comtoside of the car truck, saidfbolst'er being depressedbelow the bottoms ofsaid Aupper compression members of the truck v' side frames,substantially a`s specified.v

2. A steelcar truck comprising-,in combination: side frames,eachincluding an upper pressed or rolled steel compression member and alower pressed or rolled steel tension member; pressed or rolled. steeltransoms; pedestals extending between and connectng said compression andtension membersv of said side frames; hangers; springs;

a palr o 'cast steelconnecting castings, onel I fon each slde frame andVlocated. at thel lon itudnal centerlthereo for connecting t e transomsto the side frames; and a cast steel 1o truck bolster having acenterplate depressed below the bottoms of the upper compression membersof said truck side frames,` substantally as specified f y ETHAN I.DODDSL Witnesses:

.WILLIAM A. GEIGER,

HAM. MUNpAY.,

